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The inheritance of top-necrosis to viruses X, A, B and C in Solanum tuberosum

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Abstract

The top-necrotic reactions of potatoes to viruses X, A, B and C are determined by four dominant genes, Nx, Na, Nb and Nc respectively. In two families evidence was obtained that Nx, Na and Nc are all in the same linkage group. The genes were present in three different chromosomes of the same homologous group of four. The other gene, Nb was found to be independent of Nx and Nc. In a third family, of a different origin from the previous two, Nx, Nb and Nc were independent of each other.

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  1. Plant Breeding Institute, Trumpington, Cambridge, England

    H. W. Howard & J. M. Fuller

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  1. H. W. Howard
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  2. J. M. Fuller
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Howard, H.W., Fuller, J.M. The inheritance of top-necrosis to viruses X, A, B and C in Solanum tuberosum . Euphytica 14, 189–195 (1965). https://doi.org/10.1007/BF00038986

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